A139534 Numbers k such that numbers 24*k + 17 and 24*k + 19 are twin primes.
0, 1, 5, 11, 21, 23, 25, 26, 33, 35, 36, 43, 53, 61, 70, 71, 86, 88, 110, 113, 116, 123, 135, 138, 163, 166, 168, 175, 176, 180, 186, 193, 196, 208, 225, 226, 235, 243, 253, 268, 273, 278, 281, 310, 333, 355, 373, 376, 386, 410, 413, 435, 438, 453, 455, 460, 478
Offset: 1
Keywords
Links
- Amiram Eldar, Table of n, a(n) for n = 1..10000
Programs
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Magma
[k:k in [0..500]|IsPrime(24*k + 17) and IsPrime(24*k + 19)]; // Marius A. Burtea, Dec 31 2019
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Mathematica
a = {}; Do[If[PrimeQ[24 n + 17] && PrimeQ[24 n + 19], AppendTo[a, n]], {n, 0, 2000}]; a